Automatic feeding means for paper-machines.



C. E. POPE. i AUIOMATIC FEEDiNG MEANS FOR PAPER MAcHaNts.

APPLICATIONFILED 1ULY5.1917. i

1,283,889, .A Patented Nov. MHS.

` 4YSHEES-SHEET l- IN V ENTOR.

ATTORNEYS.

C. E. POPE.V AUTOMATIC FEEDING `MEANS FOR PAPER MACHINES.

APPLICATION FILED IULY 5. I9I7 I Patented Nov. 5, 1918.

4 SHEETS-SHE'I 2.

l INV N v e BY I v1"' M rATTORNEYS.

C. E. POPE. AUTOMMIC FEEDING MEMS FOR PAPER MACHINES.

APPLICATION FILED IULY .`9II.

4 SHEETS-SHEET 3.

I NVEN TUR.

. A TTORNEYS.

c. vE. POPE, Amon/muc momo MEANS Foa PAPER MAcHlNEs.

APPLICATION FILED IULY 5.191?. Y lgg: Patenten Nov. 5, ISHS.

4 SHEETS-SHEET 4. n

ATTORNEYS.

entran escasas narran CHARLES E. POPE, OF SPRINGFIELD, MASSACHUSETTS, SSIGN PAP-ER COMPANY. OF MILLINOCKET, MAINE, A CORP lFFQE.

OR TO GREAT NORTHERN ORATION.

AUTOMATIC FEEDING MEANS FOR PAPER-MIACI-lIlINES Application tiled July 5, 1917.

ments in Automatic Feeding Means for Paper-lilachincs, ot which the following is a spitication.

This invention relates to automatic feedine' means vrfor paper machines and particularly to improved means for automatically' transferring' the web from one drying cylinderfto another;

",Paper'tniachines ot the class described are characterized in that the web, at the start or atter an)- break, in the. process ot' making 'the paper. iscarried automaticallyv through tlie'inachine. as distinguished from leading` the web through the machine by liant. For example, the web is arranged to jump the distance trom one di'ier to another and is thus transferred by its own momentum. Certain ditlicultics have fromtiuie to time appeared in the operation ot such machines in practical use, and one of the main ainis of this invention is to provide means to insure to an added degree the automatic transt'er ot the paper from drier to drier.

An object ot' this invention is to provide in a paper machine, in combination with` the drying' cylinders thereof, means whereby the forward end of the traveling' web may be automatically guided or fed in a definite path to pass it trom drier to drier'.

Another object of the invention is to provide in a machine of theclass described, means to direct blasts ot' air in'opposite directions upon the forward end of a web as it passes troni one cylinder to another, the arrangement beingy characterized by a continual stripping' of the web from the lower drier and a litting' upper drier by the resultant force of the opposed blasts. i l

Other obiects and advantages will appear in the description to follow and will be pointedout in the appendedlclaims.

Thefinven'tioii, in an embodiment at present preferred, is shown for illustrative pui'- poses in the accompanying' drawings, in which .r

Figure 1 is a diagi'ammatical view show- Specification of Letters Patent.

of the web toward the Serial No. 178,730.

ing a series of drying vention applied thereto;

tig. 2 is a partial showing the mounting in Fig'. l, so fai standing' ot' the in the art;

Fig. 3 is a diagrammatical view 'enlarged scale. showin in which Patented Nov. 5,1918.

cylinders with the inside elevational view of the parts indicated as is necessary to an underinvention by those skilled ,e in detail the manner a web is automatically guided and transferred from drier to drier;

Fig. +L is a sectional line 1 1 0f Fig'.

Fig. 5 is a diagrammatical View plan view taken on the O11 .all

enlarged scale showing' a modification in the means for automatically transferring a web troni drier to drier;

Fig. 6 is a fragmentary sectional elevation taken on the line 6%6 112.1 7 is a diagram ot' Fig. 5. inatical view showing the invention in a slightly modified form asA applied. to anotheiI cylinders; and

Fig. S is a modifie nient shown in Fig. 7. Referring to these d arrangement of drying` ation of the arrangerawings, the invention has been illustrated as applied to a high speed automatic disclosed in my prior granted February (i. 1917.

paper machine ofthe 'C Vpe Patent No. 1,214,712,

The invention is,

however, capable of Ageneral application and' is, shown and described in connectionwith a machine of the type mentioned, merely as an illustrative example of one specific use of the invention.

in the process those ,skilled in the or'after any break ing' the paper, is nsiiand through the drying cylinders by hand.

Rather than to .handle the web', the general practice is to form usually at one side ot. cai'ried through the mac loads a web of full width for the normal operation.

Reterring to Figs. apron 10 carries the tull'width ot the a ribbon, the wire, which is iine and afterward web 11 from the last press rolls (not shown)v to a guide rolli12 adjacent the periphery and the apron return `ln line with the upper it and the First drier ot the first drier 13 s over other rolls 12. rolt 12 and between 13 is a guide roll 14 'provided with a doctor 15. Above and a little beyond roll 14 is a horizontally arranged pipe 16 connected to a source of air the first drier 13 and its apron 17, Whereupon the ribbon is pulled. around roll 14. This manner ofA leading the web from the press rolls to the first drier is claimed and more fully described in my prior Patent No.

1,183,113, granted May 16, 1916,; and .is shown and described herein simply for illustrative purposes, as any other suitable'means may be employed, as desired. l

The arrangement of the drying cylinder shown in Figs. 1 and 2 is claimed and fully described' in my rst-named prior patent. This arrangement of the driers will be briefly described herein so far as is necessary to an understanding or" the present invention. Each lower drier 13 of a. series is located with its axis 'vertically or substantially so, below that of its companion upper drier 1S in the upper series. The upper and lower driers are also arranged only small distance apart -or in such a Way that the forward end of the web or ribbon 11, as it travels rapidly through the machine., may jump trom the lower ot th upper drier and its associated apron 19, Without climbing any appreciable distance. The aprons 17 and 19 are carried by suitable guide rolls 20 and 21, respectively, and the lower roll 21 directs its apron 19 to the upper'drier 1S, so that. as the ribbon 11 leaves the drier 13, it will ,jump to the. apron 19 and be transferred to the upper drieni This result is either achieved by the momentum or' the web, or the latter is aided and Aguided in its transfer by means consti tutinn' the main feature ot my presentl invention in one preferred embodiment as will be later described.

I nish it to be clearlyunderstood that by the use of the present invention the ribbon may be automatically transferred from drier 'to drier independently of special arranpen'iem. et the driers. il the latter are arranged to. make the transfer of ther ribbon from drierto drier automatically the present invention will insure such. -transjfer with'pgreater-certainty. `What I considerte be v brfxladly new however, is the air blast transierringmeans independently of any specific arrangement of the driers, will be pointed out in the claims.

The. web or ribbon 11 is stripped from the drier 18 by a doctor 23,215 it traveling vertically or substantially so and down- Wardli',7 in a direction substantially tangential to the lonver drier 13 lof the succeeding The upper left hand guideirolls 2O and lower right hand guide rolls. 21. are

.driers 18 of the cylinders.

drier into the vbight indicated in Fic' :lessees After the ribbon has been started through the machine, a web of full Width is formed and the normal operation ensues. The doctors 23 are then preferably moved to a rctracted position. Below `the' doctors 23 are other devices which function to clean the Similar devices are provided for the loiver driers 13,'as indicated. These devices comprise doctor blades .24 bent into substantially the form shown to form troughs. Each trough is mounted upon' a pipe 25 and is connected With the interiorthereof in a manner disclosed in the tiret-named prior patent,`to which reference is made for a more complete disclosure. For the present purposes, it will suffice to state that the pipes Q5 are connected to a suitable vacuum pump Whereby the lm of dust and ,lint collected from the driers may be automatically removed from the troughs. A

The structure so far described is substantially the same as that disclosed in the above- :named prior patents. The present invention is more particularly concerned With improved deviceswhich facilitate the automatic transfer of the web from one drier and directing it into the bight of the other drier and its associated apron. The preferred form of these improved devices v'vill now be described. Referring particularly to Fig. 4f, between each pair of upper and lower driers in the form shown i or suitabl arranejed otherwise accordin to y c .Qi

the drier arrangements', tivo horizontally arranged nozzles 2G are mounted in spaced relationon a pipe 27 with their outlets directed in opposed relation'and axially with respect Ito the drying cylinders. Preferably nozzles 26 are spaced sufliciently tQ permit the free passage of the narrow ribbon 11 between them, since ordinarily the full Width ot the Web is not handled at the start lor after any break in the process ci making the paper. It is to be understood that nozzles 26. although closely adjacent the peripheries ofcylinders 13 de not actually engage therewith and' are spaced far enough from the driersy to permit the web to pass under them when desirable as when the full sheet is running' through. Each pipe 2T is provided with a valve'28 (Fig. 2) and the several pipes are connected to a common Ypipe 29 which leads to a suitable source of air under pressure, a valve 30 being provided in pipe Q9 to control the ventire series of nozzles 26. At the start of the machine, valve BO'is open and blasts of air issue in opposite directions from each pair of nozzles. 2 6, as

4. The nozzles are directlie . pipes 31 referred to above.

ed substantially tangential to the lovver drier 13 and the tveb 11. as it reaches thel top olf' the latter. is met alongeach edge by the oppositelv directed blasts of air. The air is blovvn in under theiveb to strip the latter trom the lower drier. The oppositely directed blasts ot air come together in under the web and. as they meet in opposition, the Tweb is t'orced upwardly. The vveb, meanwhile having been traveling at high speed, is carried by its momentum, aided and guided by the resultant etfect of the opposed blasts ot' air, drier 1S and its associated apron 12.). l

The force of the blasts from nozzles 2G is regulable by the valve 28, vvhereby the lift,- ing action ot' the vveb may be adjusted to the desired degree to automatically transfer' the web to the driers. These valves 28, after having been once properly adjusted, may he fixed in any suitable manner, as by removing the hand Wheels, for example, and thereafter the valve 30 only is used to control the entire series, as a starting and stopping means ior the blasts. After the ribbon 11 has been led through the driers asY de-' scribed, the blasts from nozzles 2G are no longer necessary, and valve 30 maythen be closed.

be otherwise arranged to accomplish 'thei' same general purpose, for Fig. 5. Referring to this figure, horizontally arranged pipes 31 are mountedfa'djacent lovver driers 13 and between the lower right hand guide rolls 21 and the devices 24 for the lovver driers. Other similarly arranged pipes are provided adjacent the left hand guide rolls 20 and between them and the driers 13, or these pipes may be arranged beyond said rected to sweep across'the top thereof, as shown in in v ivnited States Patent No. 992.888, May 1G, 1911, to cooperate with the The detailed manner ot mounting pipes 31 is shown in Fig. 6 and the mounting of pipes 32 is similar. fis there indicated, the pipes preferably extend from one side of the machine inwardly a relatively short distance only, since they ordinarily act ,only upon the narrovv ribbon formed at the start or after any break in the process of making the paper. Obviously, however, the pipes may extend the entire distance across the machine and thus assist in carrying over the paper when the entire Width of the-sheet is started. Each pipe 31 of perforations, as shown in Fig. 6, and I have found that, if the perforations are made one-sixteenth ot' an inch diameter and spaced one-half of an inch nenters, satisfactorv results are obtaingtl'. Obviously, pipes 31 and 32 may be provided-With other forms of openings and other arrangements example, as in into the bight ofthe y.f1-om, asindicated in Fig. 5.

the bight of the The oppositelydirected blasts ot' air may" guide rolls and be dil and 32 is provided With a row.

may be connected tothe described supply pipegQfln an analogous manner to that'v in ivl'nch reg'v valves 2S are connected.

t'the start of the machine air under pressure is-s'upplied to pipes 31 and and blasts of air issue in opposite directions there- The Web 11, as it reaches the top of the lower drier 13 is-stripped therefrom by the blast from pipe 31 and blow toivard the upper drier 13. The web 11, as ite-is thus forced to the left- (as viewed in Fig. 5), is met by a blast or air from pipe 32 which tends to hold the web a 'ay from Lthe upper drier. The t'orce of lthe blast :trom pipes 31 and 32 is regulable by theindividual valves provided and is so adjusted that the web upper drier 1S and its associated apron 19. The the vveb or ribbon from a lower to an upper drier bythe momentum of the web is thus aided by the stripping action ofpipes 3l and the guiding action of the pipes 31 and 32 working in coperative relation. The automatic transfer of the \veb in the manner just described is more particularly pointed out and claimed in my co-pending application Serial No. 145,678, filed Jan. 31, 1917.

To secure the desired coperative action the pipes 31 and 32 under-various condil tions, separate valves are provided for each as described to permit adjustment of the pressure of the air blasts and the unions 33 for angular adjustment ot' the air blasts. llfllhen once properly adjusted. these valves Y may be tixcd as described in connection with valves 2S, andthe valve 30 only is used-as before to control the entire series of pipes'.

The invention is not limited in application to the described arrangement ot' drying cyl` inders and is capable of general use. The invention lmay be used with the ordinary and well-known staggered arrangement of drying cylinders, as shown diagrammatieally in Fig. A pipe 31 may be located between each guide roll 40, for the apron 41 of the upper driers 42, and each lower drier 43 and a pipe 39. may be arrangedbeyond each guide roll 44 for the apron 45 ofthe lower driers 43 to direct the air across the apron 45 as it bends over the roll which will tend to strip the ribbon therefrom iat' it starts to follow the apron, all as indicated in IF ig. 7. These pipes may be constructed, mounted,

11 is guided into automatic transfer of. 

